EP 0362680 A3 19910410 - EXTENDING AND RETRACTABLE TELESCOPIC ARM
Title (en)
EXTENDING AND RETRACTABLE TELESCOPIC ARM
Publication
Application
Priority
CH 367088 A 19881003
Abstract (en)
[origin: EP0362680A2] The arm has a fastening element (2) and a plurality of telescopic elements (3-7) arranged therein of decreasing diameter. The fastening elements and the telescopic elements are connected to each other by at least one kinematic chain which is formed by deflected tension members (8). The tension members (8), preferably steel strips, each connect three successive telescopic elements (3-7). They are attached to the outer two telescopic elements in each case and are deflected at the top and at the bottom around the central element. When the telescopic element (3) of the largest diameter is displaced relative to the fastening element (2), each further telescopic element (4-7) is displaced by a corresponding length in relation to its outer adjacent element. This arrangement results in a rigid telescopic arm of small constructional height which operates without jolting.
IPC 1-7
IPC 8 full level
B25J 18/02 (2006.01); B25J 19/00 (2006.01); F16M 11/04 (2006.01)
CPC (source: EP US)
B25J 18/025 (2013.01 - EP US); B25J 19/0012 (2013.01 - EP US); F16M 11/18 (2013.01 - EP US); F16M 11/28 (2013.01 - EP US)
Citation (search report)
- [X] FR 2611826 A1 19880909 - MASSERON ALAIN [FR], et al
- [X] BE 899228 A 19840716 - TECNOMATIX N V
- [X] GB 2105398 A 19830323 - MERRYWEATHER AND SONS AND LIMI [GB]
- [A] DE 3528996 C1 19861218 - MANNESMANN AG
- [A] EP 0156194 A2 19851002 - CINCINNATI MILACRON INC [US]
- [A] GB 2115781 A 19830914 - SEIKO INSTR & ELECTRONICS
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0362680 A2 19900411; EP 0362680 A3 19910410; CH 675762 A5 19901031; US 5020323 A 19910604
DOCDB simple family (application)
EP 89117838 A 19890927; CH 367088 A 19881003; US 41558589 A 19890929